import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/login.vue'
import home from '../components/home.vue'
import welcome from '@/components/welcome.vue'
import users from '@/components/user/users.vue'
import roles from '@/components/power/roles.vue'

Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  {
    path: '/home',
    component: home,
    redirect: '/welcome',
    children: [
      { path: '/welcome', component: welcome },
      {
        path: '/users',
        component: users
      },
      {
        path: '/roles',
        component: roles
      }
    ]
  }
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})
// 挂载路由首位
router.beforeEach((to, from, next) => {
  //to and from are Route Object,next() must be called to resolve the hook}
  if (to.path == '/login') return next()
  const tokenstr = window.sessionStorage.getItem('token')
  if (!tokenstr) return next('/login')
  next()
})

export default router
